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Two Stage Unitary Range
DU/DUH-LT210_10152019al
INSTALLATION
Heater and Baffle Installation
•
Locate the burner gasket provided and bolt the burner in place on the tube flange with provided hardware.
The burner must never be installed in a tilted position.
The sense electrode of the burner cup should be in
the 12 o'clock position (Figure 12).
Figure 12: Burner Gasket Installation
TUBE FLANGE
GASKET
NOTE:
CLOSE ALL OPEN ENDED "S" HOOKS, CHAIN LINKS,
AND TURNBUCKLES OR ANY OPEN CONNECTION.
NOTE:
BURNER MUST
NEVER BE TILTED
SIDEWAYS. ONLY
INSTALL AS SHOWN.
BURNER
ASSEMBLY
•
If required for your heater model (refer to Table 1), install the baffle at the end of the heat exchanger. The
small tab on the baffle is folded over the end of the tube and clamped in place by the vent connector and
vent system, (refer to Figure 13).
•
Note:
Baffles are always placed at the end of the last heat exchanger tube length, with the exception
to the special configuration 205,000 BTU/hr with a 50' tube length, refer to for more details.
•
Note:
Baffles are either one or two sections (each section is 6' in length). Multiple sections are simply
coupled together. Where stainless and aluminized sections are supplied, always place the stainless
steel section closest to the burner. The easiest installation method is to pull the baffle through the
tube using a long wire.
Figure 13: Baffle Installation
VENT
ADAPTER
INSTALL BAFFLE AS
REQUIRED IN LAST
SECTION OF TUBE
BEND TAB
OVER END
OF TUBE AT
6 O’CLOCK
POSITION
NOTE:
CLOSE ALL OPEN ENDED "S" HOOKS, CHAIN LINKS,
AND TURNBUCKLES OR ANY OPEN CONNECTION.
Summary of Contents for DU-100
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